参数资料
| 型号： | SY89426JY |
| 厂商： | Micrel Inc |
| 文件页数： | 2/7页 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER CLK SONET 28-PLCC |
| 标准包装： | 38 |
| 系列： | Precision Edge® |
| 类型： | 时钟/频率合成器 |
| PLL： | 无 |
| 输入： | TTL |
| 输出： | PECL，TTL |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:2 |
| 差分 - 输入:输出： | 无/是 |
| 频率 - 最大： | 622.08MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-LCC（J 形引线） |
| 供应商设备封装： | 28-PLCC |
| 包装： | 管件 |
2
Precision Edge
SY89426
Micrel, Inc.
M9999-112105
hbwhelp@micrel.com or (408) 955-1690
PACKAGE/ORDERING INFORMATION
28-Pin PLCC (J28-1)
Ordering Information(1)
Package
Operating
Package
Lead
Part Number
Type
Range
Marking
Finish
SY89426JC
J28-1
Commercial
SY89426JC
Sn-Pb
SY89426JCTR(2)
J28-1
Commercial
SY89426JC
Sn-Pb
SY89426JY(3)
J28-1
Industrial
SY89426JY with
Matte-Sn
Pb-Free bar line indicator
Pb-Free
SY89426JYTR(2, 3)
J28-1
Industrial
SY89426JY with
Matte-Sn
Pb-Free bar line indicator
Pb-Free
Notes:
1. Contact factory for die availability. Dice are guaranteed at T
A = 25°C, DC Electricals only.
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
26
27
28
1
2
3
4
18
17
16
15
14
13
12
25 24
23
22
21 20
19
56
7
8
9
10
11
GND
NC
GND
NC
VCC
FLTRP
RST
RETRFCK
V
CC
V
CC
DISC
FLTRN
PLCC
TOP VIEW
J28-1
VCC
CK622P
CK622N
VCCO
CK155
GND
SEL39
RFCK
VCC
NC
SEL78
INPUTS
RFCK [Reference Clock] TTL
Reference clock IN. (38.88, 51.84 or 77.76MHz).
SEL39 [38.88MHz Select] TTL
Logic HIGH on this pin denotes a 38.88MHz input reference
clock. Tie to logic LOW if input is not 38.88MHz.
SEL78 [77.76MHz Select] TTL
Logic HIGH on this pin denotes a 77.76MHz input reference
clock. Tie to logic LOW if input is not 77.76MHz.
RST [Reset] TTL
Tie to logic LOW for normal operation; logic HIGH forces reset
of internal Phase Detector & feedback dividers.
FLTRP, FLTRN [Loop Filter, Pos & Neg] Analog
Connect a series RC loop filter between these pins. The
suggested RC values are 500
and 0.1F, as shown in the
Typical Application.
DISC [Disable Clock] TTL
Logic HIGH on this pin disables the Retimed Reference Clock
output RETRFCK); if this output is not required, it is
recommended that it be disabled to reduce switching noise. A
logic LOW enables the output.
PIN DESCRIPTION
OUTPUTS
CK622P, CK622N [622 Clock Output] Differential PECL.
622.08MHz output clock from PLL B.
CK155 [155 Clock Out] Single-ended PECL
155.52MHz output clock.
RETRFCK [Retimed Reference Clock Out] TTL
An output clock with the same frequency as the input Reference
Clock (RFCK) and a 45-55% duty cycle. This output is derived
by dividing the 622.08MHz output by the appropriate factor
(e.g., divide by 16 for a 38.88MHz inout reference; divide by
12 for 51.84Mhz in; or divide by 8 for 77.76MHz in).
POWER & GROUND
VCC
+5V for internal circuits.
VCCO
+5V for PECL outputs.
GND
Ground (0 volts).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY89426JY TR | 功能描述:时钟合成器/抖动清除器 SONET OC-12/OC-3 Clock Synthesizer (I Temp, Lead Free) RoHS:否 制造商:Skyworks Solutions, Inc. 输出端数量: 输出电平: 最大输出频率: 输入电平: 最大输入频率:6.1 GHz 电源电压-最大:3.3 V 电源电压-最小:2.7 V 封装 / 箱体:TSSOP-28 封装:Reel |
| SY89426JYTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:SONET OC-12/OC-3 CLOCK SYNTHESIZER |
| SY89429 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:5V/3.3V PROGRAMMABLE FREQUENCY SYNTHESIZER 25MHz to 400MHz |
| SY89429A | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:PROGRAMMABLE FREQUENCY SYNTHESIZER 25MHz to 400MHz |
| SY89429A_09 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:PROGRAMMABLE FREQUENCY SYNTHESIZER (25MHz to 400MHz) |
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